AMATEUR RADIO EXAMINATION ‐ QUESTION PAPER ‐ INDEX NO.
AMR-J-2007-
IC COLOUR
-
IC NO. DAY
:
SUNDAY
DATE
:
24TH JUNE 2007M / 09 JAMADILAKHIR 1428H
MASA
:
0930 – 1130 (2 HOURS)
VENUE
:
MULTIPURPOSE HALL, UNIVERSITI BRUNEI DARUSSALAM
TO ALL CANDIDATES PLEASE READ CAREFULLY THE INSTRUCTIONS BELOW BEFORE YOU START YOUR EXAMINATION PAPER 1.
This examination paper contains 60 multiple choice questions and is separated into 2 sections. Section A contains 30 multiple choice questions, and Section B also contains 30 multiple choice questions, please answer all.
2.
To answer, please circle the letters A, B, C or D that have been provided in the Answer Sheet.
3.
Candidates need to pass in both sections (Section A and B). Failure in either sections will be regarded as an automatic Fail.
4.
Allowed writing material is BLUE or BLACK pens only. Pencils and other writing materials are not accepted.
5.
Strike answers that are to be changed. The use of erasers, blanco or the likes is prohibited.
6.
Mathematical work is allowed only on the question paper. Doing mathematical work on other paper is prohibited.
7.
Examination paper and Answer Sheet are to be returned to the invigilator, even if no questions are answered.
8.
Candidates are prohibited to speak, borrow writing materials or calculators or the likes during the whole duration of the examination.
9.
Identification Card or passport is to be placed on the table for the whole duration of the examination. Candidates are not allowed to leave their seats without permission from invigilators
10.
If it is found that candidates are not following instructions, orders or warnings during the examination, their names will be recorded for further action or immediate disqualification.
SECTION A
This section contains 30 questions. Answer all. 1. In what Region and Zone is Brunei Darussalam located? A. Region 3, Zone 28 B. Region 3, Zone 25 C. Region 1, Zone 25 D. Region 2, Zone 28 2. What is the ‘Callsign’ given to Brunei Darussalam by the ‘International Telecommunication Union’? A. V5 B. V8 C. VA D. VM 3. If you purchase amateur radio equipment from outside the country, what is the right thing to do upon arrival at the custom’s control post? A. Bringing in the said equipment without notifying Royal Brunei Custom and Excise officials B. Surrenderring the equipment to the Royal Brunei Custom and Excise officials C. Paying import tax for the equipment D. Bringing the equipment directly to AiTi officials 4. All operations regarding station usage need to be recorded in a log book. What details are required to be included in the log book for amateur radio operators everytime they are on air? A. Date, station callsign which with you are communicating with, frequency band and emission B. Date, frequency band and emission, station callsign which with you are communicating, start and end of conversation time, signal report, QSL C. Date, frequency band and emission, power output, conversation time, signal report, statement D. Date, station which with you are communicating with, frequency band, emission and power output 5.
With regards to AiTi rules and regulation, amateur radio equipment is only permitted to be operated A. Within the frequency range stated in the licence B. Within the permitted range of frequency in the radio equipment C. Using a radio transceiver D. One time only
6.
Which of the statement below is INCORRECT regarding installation of amateur radio equipment in a vehicle? A. Radio equipment can be installed in any vehicle according to remarks in a valid license B. One unit of licensed radio equipment is only allowed for one vehicle unless stated otherwise in the licence C. Every amateur licence holder is allowed to install in any vehicle that he/she owns D. Installation of radio equipment and antenna is required to meet the specifications and regulations of road and safety code
7.
The type of communication for an amateur radio operator to test a transmission into a repeater without giving information on the station callsign is called a A. Invalid and unlicensed voice transmission B. Transmission without communication, without voice being transmitted C. Unknown transmission which is invalid D. A transmission test without a callsign information given
8.
9.
If you are in contact with another station and you hear an emergency call for help on your frequency, what should you do? A. Tell the calling station that the frequency is in use B. Stop your QSO immediately and take the emergency call C. Call your local Fire and Rescue Department and inform them of the emergency D. Direct the calling station to the nearest emergency net frequency A station ‘Callsign’ is sent for the purpose of identification at the start of transmission and end of transmission. It should be repeated for A. Within the first 30 minutes B. Every 15 minutes C. Once after the first 15 minutes D. Once within 30 minutes
10. Station and Log book as well as a licence are required for random inspection done by A. A certified Radio Organisation B. Authority For Info‐communications Technology Industry C. Royal Brunei Police Force D. Registration of Organisations 11. What is the frequency band used by an amateur radio for a “Very High Frequency”? A. 144.000 MHz – 146.000 MHz B. 137.000 MHz – 156.000 MHz C. 144.000 MHz – 148.000 MHz D. 146.000 MHz – 148.000 MHz 12. What is the ‘Q’ code for “Are you ready?” and “What is your location?” A. QSY and QTH B. QRV and QSP C. QRQ and QSY D. QRV and QTH
13. In what circumstances can an amateur radio broadcast information to the public? A. When an amateur radio operator is paid B. When broadcasting is less than one hour C. When broadcasting is more than 15 minutes D. It is entirely prohibited 14. All amateur radio equipment in a station has to be maintained and used A. Not to interfere with other radio‐communication services B. With support from IEE C. Approximately 20% of the approved maximum power D. With complete discretion by AiTi officials 15. What does the statement “Radio regulation defines amateur radio services as a secondary service whilst broadcasting services is the primary service” ? A. Each and every frequency band user has equal rights B. Amateur radio services is permitted to use the frequency band in case of emergency C. Amateur radio services need to increase its transmission power to overcome any interference from broadcasting services D. Amateur radio services are permitted to use the frequency band if it does not cause any interference to broadcasting services 16. Why is it necessary for a ‘Directional High‐Gain’ antenna to be placed higher than the surrounding buildings? A. To prevent it from collapsing B. To avoid the antenna from damaging nearby buildings with its RF power C. For the antenna to receive greater universal wave and low wave D. To avoid the antenna from directing its excess RF power to the people in nearby buildings 17. What is needed to take into account when installing an antenna on the surface of the earth? A. The antenna should be installed not expose people to radio frequency radiation from the antenna’s transmission B. The antenna should not be installed higher than you C. The antenna can be installed on a wet surface D. The antenna need to be painted to avoid human being and animals from colliding into the antenna 18. What is meant by the term “DX”? A. Best regards B. Distant station C. Calling any station D. Go ahead 19. What is the meaning of the term “73”? A. Long distance B. Best regards C. 73% D. Good morning
20. What does RST mean in a signal report? A. Recovery, signal strength, tempo B. Recovery, signal speed, tone C. Readability, signal speed, tempo D. Readability, signal strength, tone 21. What is a good way to make contact on a repeater? A. Say the callsign of the station you want to contact three times B. Say the other operator’s name, then your callsign three times C. Say the call sign of the station you want to contact, then your callsign D. Say, “Breaker, breaker” then your callsign 22. When using a repeater to communicate, which of the following do you need to know about the repeater? A. Its input frequency and offset B. Its callsign C. Its power level D. Whether or not it has amo patch 23. What is simplex operation? A. Transmitting and receiving on the same frequency B. Transmitting and receiving over a wide area C. Transmitting one frequency and receiving on another D. Transmitting one‐way frequency 24. When should you use simplex operation instead of a repeater? A. When the most reliable communications are needed B. When a contact is possible without using a repeater C. When an emergency telephone call is needed D. When you are traveling and need some local information 25. What type of interference may come from a multi‐band antenna connected to a poorly tuned transmitter? A. Harmonic radiation B. Auroral distortion C. Parasitic excitation D. Intermodulation 26. What is the minimum validity period of an Amateur Radio Station Licence? A. 3 months B. 1 year C. 20 years D. 5 years
27. Which of the following uses the International Phonetic Alphabet? A. Alpha, Norway, Delta B. Charlie, Alpha, Tosca C. Denmark, Oscar, Gordon D. Bravo, Uniform, Golf 28. The Morse code format for the number ‘47’ is: A. B. C.
_ _... …._ …._ _ _... …_ _ _ _... …_ _ …._
D. 29. The Morse code format for ‘HELLO?’ is: A. B. C. D.
…. . ._.. ._.. _ _ _ .._ _.. …. . ._.. ._.. _ _ _ .._ _. ._.. ._ _ . ._. .._ _. ._.. ._ _ . ._. .._ _..
30. The Telecommunication Order 2001 under Section 33 states that any person who establishes, installs, maintains, provides or operates a telecommunication system or service within Brunei Darussalam without a licence granted shall be guilty of an offence. Which of the following statement of conviction is CORRECT should a person do commit an offence? A. Any person guilty of an offence under this section shall be liable on conviction to a fine not exceeding $100,000, imprisonment for a term not exceeding 3 years or both. B. Any person guilty of an offence under this section shall be liable on conviction to a fine not exceeding $10,000, imprisonment for a term not exceeding 1 year or both. C. Any person guilty of an offence under this section shall be liable on conviction to a fine not exceeding $50,000, imprisonment for a term not exceeding 3 years or both. D. No fine is liable at all.
SECTION B
This section contains 30 questions. Answer all.
31. The relationships between ‘Capacitance (C)’, ‘Current (I)’, ‘Resistance (R)’ and ‘Charge (Q)’ is A. V = CQ B. C = V/R C. R = Q/CI D. R = CIQ 32. If ‘c’ is the velocity, ’f’ the frequency and wavelength ‘λ’, which listed below is the correct formula? A. λ = f2 x c B. f = c x λ C. λ = √ (f x λ) D. λ = c ÷ f 33. In the diagram below, indicate the current flow in the semi‐conductor diode. A B A. From B to A B. From A to B C. From A to B and B to A D. None of the above
34.
Symbol transistor
Collector Base
Emitter
Wtih reference to the transistor symbol above, which one is the correct answer? Collector
i.
P
P Base
Collector
ii.
Base
P
N P
P Emitter
Emitter
Collector
Collector
iii.
iv. N
Base
N Base
P
N N
N Emitter
Emitter
A. i B. ii C. iii D. iv 35. Which direction is the electron flowing in the diagram below? A. From A to B R A B B. From D to C C. From C ‐> A ‐> B ‐> D D. From D ‐> B ‐> A ‐> C C D 36. What is the total resistance of four 24 Ohms resistors arranged as shown below? A. 96 Ohms B. 16 Ohms C. 6 Ohms 24Ω D. 24 Ohms 24Ω 24Ω 24Ω 6V 37. A transformer is used to balance a transmission line of 2.5 Ohm with a 300 Ohm antenna. What is the ratio required for the transformer to do this? A. 1 : 1 B. 1 : 120 C. 1 : 6 D. 1 : 36
38. If a capacitor (C) is connected to a 240V supply with a total charge (Q) of 400 micro coulombs, what is the total capacitor (C) as shown in the diagram below? A. 1.67 μF B. 1.67 F 240V C. 0.6 μF V D. 0.6 F
C=?
39. What is the frequency of an alternating current if the time period is 0.75 μs?
40.
41.
42.
43.
A. 1.3 kHz B. 1.3 MHz C. 75 Hz D. 75 kHz What is the wavelength of a 430 MHz wave with (c) speed of light at 3 x 108 m/s? A. 0.143 m B. 698 mm C. 698 mm/sec D. 6.98 μm Two resistors with a 25 Ohms and 20 Ohms connected in series with a 15 Ohms resistor connected in parallel. What is the total resistance of the three resistors and the voltage if a 5A current flows through the circuit? A. 26.11 Ohms and 130.56 V B. 26.11 Ohms and 5.22 V C. 11.25 Ohms and 56.25 V D. 60 Ohms and 300 V Define the function of High‐pass filter and Low‐pass filter? A. Restrict low frequency and restrict high frequency B. Restrict high frequency and restrict low frequency C. Channeling low frequency and channeling high frequency D. None of the above What is the modulation used in “Very High Frequency” and “High Frequency”? A. Single band and multiple band B. Frequency modulation and amplitude modulation C. Amplitude modulation and frequency modulation D. None of the above
44. The transmission power for transmitting amateur radio must not exceed A. 150 Watts B. 100 Watts C. 50 Watts D. 25 Watts
45. For a frequency of a 15 meter band, which one of the frequency band below is correct for amateur radio? A. 12.36 – 12.53 MHz B. 24.89 – 24.99 MHz C. 50.00 – 54.00 MHz D. 21.00 – 21.45 MHz 46. What is the frequency band for a ‘High Frequency’? A. 30000 kHz – 300000 kHz B. 3000 kHz – 30000 kHz C. 300 Hz – 3 kHz D. 3 kHz – 300 kHz 47. Define which antenna comprises of ‘Driven Element’ as well as ‘Reflector Element’? A. Omni‐directional Antenna B. Half wavelength dipole C. Yagi Antenna D. Straight wire antenna 48. Which antenna is the best option to be installed for a portable HF station in case of emergency? A. Dipole B. Three element Quad C. Three element Yagi D. Satellite Dish 49. The main factor for a repeater to be used in a (VHF) amateur radio is A. Increase long distance B. Impove receiving and transmitting signal C. Decrease transmitter power D. Improve repeater image 50. What is the velocity of an electro‐magnetic wave? A. 3 x 106 metres/sec B. 3 x 108 metres/sec C. 3 x 10‐8 metres/sec D. 3 x 1010 metres/sec 51. The relationship of ‘Current’ is A. I = VR B. I = V/R C. I = IR D. I = V2R
52. What is the SI Unit for ‘CURRENT’ and ‘RESISTANCE’? A. Ampere and Resistor B. Ampere and Ohm C. Volt and Ohm D. Henry and Ohm 53. The relationship of ‘Power’ is A. P = V/R B. P = VR C. P = IV D. P = V2R 54. What formula shows how voltage current and resistance relate to each other in an electric circuit? A. Ohm’s Law B. Kirchhoff’s Law C. Ampere’s Law D. Tesla’s Law 55. What is the basic unit of electric power? A. The ohm B. The watt C. The volt D. The ampere 56. An increase in power from 2 Watts to 5 Watts is equal to a gain of: A. 2.5 dB B. 3 dB C. 4 dB D. 10 dB 57. What unit of measurement specifies RF electric field strength? A. Coulumbs (C) at one wavelength from the antenna B. Volts per meter (V/m) C. Microfarads (μF) at the transmitter output D. Microhenrys (μH) per square centimeter 58. What is the number of identical lamps if each draws a current (I) of 500 mA, from a 15A supply: A. 15 B. 34 C. 30 D. 7500
59. Four 10,000 ohm resistors are connected in series across a 90 Volt supply. The voltage drop across one of the resistors is: A. 22.5 Volt B. 111.1 Volt C. 90 Volt D. 5.63 Volt 60. 2 resistors are connected in parallel and are connected across a 240 volt battery. If each resistor is 2500 ohms, the total battery current is: A. 19 ampere B. 19 milliampere C. 192 ampere D. 192 miliampere